API v2 c# upload file

[Kardo]

Hi Dears,

am using asp.net core/c# i want upload folder but its not working 

using (var stream = new MemoryStream(File.ReadAllBytes(@"E:\a.txt")))
{
var response = client.Files.UploadAsync("/test/" + "a.txt", WriteMode.Overwrite.Instance, body: stream);
}

please can anyone helop me

[Greg-DB]

Can you elaborate on what you mean when you say it's "not working"? What error or unexpected output do you get?

[Octavio1]

You are missing the "await"

---

Kardo ha escrito:

Hi Dears,

am using asp.net core/c# i want upload folder but its not working 

using (var stream = new MemoryStream(File.ReadAllBytes(@"E:\a.txt")))
{
var response = await client.Files.UploadAsync("/test/" + "a.txt", WriteMode.Overwrite.Instance, body: stream);
}

please can anyone helop me

---

just before client.XXXX

I've used similar code and it works for small size files, however it does not work for big size files (over 30MB) I got the following exception System.Threading.Tasks.TaskCanceledException still do not know why.

[Greg-DB]

@Octavio1 How long does that call take before failing with TaskCanceledException? I believe TaskCanceledException should indicate a timeout on the network connection for the API call.

[Octavio1]

It takes around 100 seconds to throw the exception, Im thinking in implementing a "session" to upload the file trough several small requests besause in the future I might need to upload larger files.

Still do not know how to implement it.

http://dropbox.github.io/dropbox-sdk-dotnet/html/M_Dropbox_Api_Files_Routes_FilesUserRoutes_UploadSe...

Thanks for the response, hope this can help anyone with the same issue.

[Greg-DB]

Thanks! It does sound like the connection is timing out then. You should generally be able to upload 30 MB in a single call, but this will depend on various factors, such as your network connection.

Using upload sessions instead is the best solution. There's an example of using it here:

https://github.com/dropbox/dropbox-sdk-dotnet/blob/9803a40b3169acf66a2d14e29af8750ebe6e3e17/dropbox-...

[Octavio1]

You are right Gregg, after some investigation I found the following link for another thread for similar issues.

I used it with 1024KB chunks and it is woking properly. 

https://www.dropboxforum.com/t5/API-support/Issues-about-Chunkupload/m-p/214661#M11002

I'll give it a try to the sample you sent and provide my experience to the comunity.

Thanks!  

https://github.com/dropbox/dropbox-sdk-dotnet/blob/9803a40b3169acf66a2d14e29af8750ebe6e3e17/dropbox-...

[Greg-DB]

By the way, while it sounds like 30 MB is too big for your case, you may want to try something bigger than 1 MB, as a bigger chunk size will generally yield better performance overall. A good size to try would be 8 MB.